TfL Rail Class 315 at Forest Gate in September 2015
The refreshed interior of a TfL Rail Class 315
In service
1980 – 9 December 2022
Manufacturer
British Rail Engineering Limited
Built at
Holgate Road Works, York
Family name
BREL 1972
Replaced
Class 306
Constructed
1980–1981
Refurbished
All units: 2004–2008 (at Bombardier Derby)[1]
LO & TfL Rail units: 2015–2016 (at Bombardier Ilford)
Number built
61[2]
Number preserved
1
Number scrapped
53
Successor
Class 345
Class 710
Formation
4 cars per unit:
DMSO-PTSO-TSO-DMSO
Diagram
DMSO vehicles: EA207
PTSO vehicles: EH217
TSO vehicles: EH216
Fleet numbers
315801–315861
Capacity
As built: 318 seats
Post-2012: 309 seats, plus 7 tip-up
Owners
Eversholt Rail Group
Operators
British Rail
First Great Eastern
Greater Anglia
London Overground
MTR Elizabeth line
National Express East Anglia
Network SouthEast
TfL Rail
West Anglia Great Northern
Specifications
Car body construction
Steel underframe with aluminium body and roof
Car length
DM vehs.: 19.800 m (64 ft 11.5 in)
Trailers: 19.920 m (65 ft 4.3 in)
Width
2.820 m (9 ft 3.0 in)
Height
3.582 m (11 ft 9.0 in)
Floor height
1.156 m (3 ft 9.5 in)
Doors
Double-leaf pocket sliding, each 1.288 m (4 ft 2.7 in) wide(2 per side per car)
Wheelbase
Over bogie centres:
14.170 m (46 ft 5.9 in)
Maximum speed
75 mph (121 km/h)
Weight
DMSO vehs.: 35.0 t (34.4 long tons; 38.6 short tons)
PTSO vehs.: 32.0 t (31.5 long tons; 35.3 short tons)
TSO vehs.: 25.5 t (25.1 long tons; 28.1 short tons)
Traction motors
8 total; 4 per DMSO vehicle
(Brush TM61-53 or GEC G310AZ, interchangeably)
Power output
660 kW (880 hp)
Acceleration
0.75 m/s2 (2.5 ft/s2)[3]
HVAC
Ducted warm air
Electric system(s)
25 kV 50 Hz AC overhead
Current collector(s)
Pantograph
UIC classification
Bo′Bo′+2′2′+2′2′+Bo′Bo′
Bogies
BREL BX1
Minimum turning radius
70.4 m (231 ft 0 in)
Braking system(s)
Electro-pneumatic (disc)
Safety system(s)
AWS
TPWS
Coupling system
Tightlock[4]
Multiple working
Within class
Track gauge
1,435 mm (4 ft 8+1⁄2 in) standard gauge
Notes/references
Specifications as at November 1987[5] except where otherwise noted.
The British Rail Class 315 BEP is a fleet of alternating current (AC) electric multiple unit (EMU) trains, built by British Rail Engineering Limited at Holgate Road Carriage Works in York between 1980 and 1981; they replaced the Class 306 units. It was a variant of unit derived from British Rail's 1971 prototype suburban EMU design which, as the BREL 1972 family, eventually encompassed 755 vehicles across Classes 313, 314, 315, 507 and 508.[6] Revenue services with Class 315 units commenced in 1980 and continued until December 2022.[2][7]
^"News Desk" (PDF). The Railway Herald. No. 125. Northallerton. 21 March 2008. p. 4. ISSN 1751-8091. Archived from the original (PDF) on 9 October 2011. Retrieved 15 July 2011.
^ ab"PEP-talk: the BR second generation EMU". Rail Express. No. 317. Horncastle: Mortons Media Group. October 2022. pp. 54–55.
^"Class 315". London: Eversholt Rail. Archived from the original on 3 February 2020. Retrieved 3 February 2020.
^System Data for Mechanical and Electrical Coupling of Rail Vehicles in support of GM/RT2190(PDF). London: Rail Safety and Standards Board. 22 June 2011. p. 4. SD001. Archived from the original (PDF) on 1 April 2012. Retrieved 22 November 2022.
^"Vehicle Diagram Book No. 210 for Electrical Multiple Units (including A.P.T.)" (PDF). Barrowmore MRG. BRB Residuary Ltd. EA207 & EH216–EH217 (in work pp. 16–17 & 286–289). Archived from the original (PDF) on 21 January 2015. Retrieved 21 January 2015.
^"The twilight zone". Railways Illustrated. No. 249. November 2023. pp. 50–53.
^"Class 315 farewell set saved". The Railway Magazine. No. 1462. January 2023. p. 73.
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